All categories

2 years ago

What is 3x1+1+1+1+1+1+1+1+2+3

Mathematics

2 answers:

Andrej [43]2 years ago

7 0

Answer:

Step-by-step explanation:

Math is fun.

White raven [17]2 years ago

7 0

Answer:

15 simol

Step-by-step explanation:

You might be interested in

What’s is part A?? .....

bixtya [17]

Answer:

A. 3

B. 4

C. 1

D. 2

Step-by-step explanation:

Consider all equations:

A. $y=x^2 -6x+8$

This is the equation of parabola with vertex at point

$x_v=\dfrac{-b}{2a}=\dfrac{-(-6)}{2\cdot 1}=3\\ \\y_v=3^2-6\cdot 3+8=9-18+8=-1$

The y-intercept is at point

$x=0\\ \\y=0^2-6\cdot 0+8=8$

Since

$x^2 -6x+8=x^2-4x-2x+8=x(x-4)-2(x-4)=(x-2)(x-4)$ ,

the x-intercepts are at points (2,0) and (4,0)

The leading coefficient is 1 > 0, then the parabola opens upwards.

Hence, the graph of this parabola is 3.

B. $y=(x-6)(x+8)$

This parabola has two x-intercepts at points (6,0) and (-8,0).

The leading coefficient is 1 > 0, then the parabola opens upwards.

The only possible choice is parabola 4.

C. $y=(x-6)^2+8$

This parabola has the vertex at point (6,8), opens upwards, therefore does not intersect the x-axis.

The graph of this parabola is 1.

D. $y=-(x+8)(x-6)$

This parabola has two x-intercepts at points (6,0) and (-8,0).

The leading coefficient is -1 > 0, then the parabola opens downwards.

The only possible choice is parabola 2.

4 0

2 years ago

Read 2 more answers

The initial value of your new car was $20,000.after one year, the value of the car is $18,000. What will the approximate value o

xeze [42]

Answer:

$4000

Step-by-step explanation:

the cars value is going sown by 2000 dollars each year so in seven years the car will be worth 4000 dollars

Note: I'm not completely positive on this.

3 0

2 years ago

Solve for r: C = 2(pi)r.

Masja [62]

<span>the main condition can be found one of the following given methods: if A = B*C*D, if we want to find the value of B, so B = A /C*D, the similar method can be applied to find the value of C an D. These are C= A/ B*D and D = A /C*B in our case we have C = 2*Pi* R, solve for R does mean, searching the value of R, so if we want to find the value of R, it is R = C / 2*Pi </span>

5 0

2 years ago

In March there was 85 mm of rain. In April there was 68 mm. What is the percentage change?

ZanzabumX [31]

18:) I hope that helped

6 0

2 years ago

Find the sum.<br>5/xy+x^2/y^2

Shalnov [3]

Answer:

x3+5y3 /xy2

Step-by-step explanation: